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1. A short grounded vertical antenna has a length L which is 0.05λ at frequency f. If its radiation resistance at f is R ohms, then its radiation resistance at a frequency 2f will be
(A): 2RΩ
(B): 4RΩ
(C): RΩ
(D): R/2Ω
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Comments
By: guest on 02 Jun 2017 12.55 am
Rr = 80p 2 ∴ Rr ∝ f2.
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